Rotational Mechanics | Collision of Spinning Ball with Movable Plank

Описание к видео Rotational Mechanics | Collision of Spinning Ball with Movable Plank

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A solid sphere of mass m and radius R having initial
angular velocity 0 5v0
4R
  and initial vertical velocity
v0 collides with a plank of mass M = 4m with a
coefficient of restitution e = 0.5 as shown in the
figure. The plank is placed on a smooth horizontal
surface. The coefficient of friction between the
sphere and the plank is  = 0.5. Then choose the
correct option(s).
(A) The angular velocity of sphere just after collision is 5v0
12R
(B) The angular velocity of sphere just after collision is 5v0
6R
(C) The velocity of plank just after collision is v0
12
(D) The impulse due to friction on the sphere during collision is mv0
3

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